CN118259244A

CN118259244A - Radar parameter adjustment method and device, electronic equipment and storage medium

Info

Publication number: CN118259244A
Application number: CN202211693099.9A
Authority: CN
Inventors: 徐敏
Original assignee: Hangzhou Hikvision Digital Technology Co Ltd
Current assignee: Hangzhou Hikvision Digital Technology Co Ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2024-06-28

Abstract

The embodiment of the application provides a radar parameter adjustment method, a radar parameter adjustment device, electronic equipment and a storage medium, wherein the method comprises the following steps: obtaining a detection result corresponding to the radar, carrying out statistical analysis on the detection result to obtain characteristic information corresponding to the detection result, wherein the characteristic information is used for identifying related attributes in the process that the radar detects targets in a detection range, determining radar parameters to be adjusted based on the characteristic information and current parameters of the radar, and issuing the radar parameters to be adjusted to the radar so that the radar detects the targets according to the radar parameters to be adjusted. The feature information is obtained by carrying out statistical analysis on the radar detection result, the input of an external sensor is not needed, and the radar parameter to be adjusted can be determined based on the feature information and the current radar parameter, so that the radar can carry out target detection according to the issued radar parameter to be adjusted, the autonomous adjustment of the radar parameter can be realized, and the adaptability of the radar to an actual detection scene is improved.

Description

Radar parameter adjustment method and device, electronic equipment and storage medium

Technical Field

The present application relates to the field of radar technologies, and in particular, to a method and apparatus for adjusting radar parameters, an electronic device, and a storage medium.

Background

A radar is an electronic device that detects a target using electromagnetic waves, and can emit electromagnetic waves to illuminate the target and receive echoes reflected by the target, thereby obtaining information such as a distance from the target to an electromagnetic wave emission point, a distance change rate (radial velocity), an azimuth, an altitude, and the like. Radar has many radar parameters, such as operating frequency, transmit power, gain, etc.

At present, in a radar parameter setting mode, one-time parameter configuration is adopted, namely, the radar parameter is determined by debugging before application of the radar, and then the radar parameter is configured in a firmware upgrading mode. After the radar parameters are configured, in the working process of the radar, the configured radar parameters are adopted for detection.

However, in actual operation, due to the influence of various factors such as application scenes or environmental changes, the configured radar parameters are likely to not ensure that the radar achieves the optimal detection effect, and the radar has poor adaptability to the actual detection scenes.

Disclosure of Invention

The embodiment of the application aims to provide a radar parameter adjustment method, a radar parameter adjustment device, electronic equipment and a storage medium, so as to improve the adaptability of a radar to an actual detection scene. The specific technical scheme is as follows:

In a first aspect, an embodiment of the present application provides a method for adjusting radar parameters, where the method includes:

acquiring a detection result corresponding to the radar;

Carrying out statistical analysis on the detection result to obtain feature information corresponding to the detection result, wherein the feature information is used for identifying related attributes in the process of detecting targets in a detection range by the radar;

And determining radar parameters to be adjusted based on the characteristic information and the current parameters of the radar, and sending the radar parameters to be adjusted to the radar so that the radar can detect targets according to the radar parameters to be adjusted.

Optionally, the step of determining the radar parameter to be adjusted based on the feature information and the current parameter of the radar includes:

And determining radar parameters to be adjusted according to the magnitude relation between the characteristic information and the preset threshold corresponding to the identified related attribute and the current parameters of the radar corresponding to the characteristic information.

Optionally, the relevant attribute identified by the characteristic information is detected power;

The step of determining the radar parameters to be adjusted according to the magnitude relation between the characteristic information and the preset threshold corresponding to the identified related attribute and the current parameters of the radar corresponding to the characteristic information comprises the following steps:

if the characteristic information is background power corresponding to an interference area, determining a detection power threshold to be adjusted corresponding to the interference area based on a detection power threshold corresponding to the interference area if a difference between the detection power threshold corresponding to the interference area and the background power corresponding to the interference area is higher than a first preset threshold, wherein the interference area is an area in which interference exists in a detection range of the radar determined by analyzing the detection result; and/or the number of the groups of groups,

And under the condition that the characteristic information is the corresponding detected power of the interested target in different states, if the difference value between the detected power threshold of the radar and the detected power corresponding to the interested target is higher than a second preset threshold value, determining the detected power threshold to be adjusted based on the difference value and the detected power threshold, wherein the different states comprise different distances and/or different speeds.

Optionally, the relevant attribute identified by the characteristic information is echo power;

if the echo power of the target is lower than a third preset threshold value, determining radar parameters to be adjusted according to the current power parameters of the radar, wherein the radar parameters to be adjusted comprise transmitting power and/or receiving gain, and the radar parameters to be adjusted are larger than the current power parameters;

And if the echo power of the target is higher than a fourth preset threshold, determining radar parameters to be adjusted according to the current power parameters of the radar, wherein the radar parameters to be adjusted comprise transmitting power and/or receiving gain, and the radar parameters to be adjusted are smaller than the current power parameters.

Optionally, the relevant attribute identified by the feature information is detection resolution;

If the characteristic information is the distance corresponding to the targets in the detection range, if a plurality of targets with the difference value smaller than a fifth preset threshold exist between the corresponding distances, determining the distance resolution to be adjusted according to the current distance resolution of the radar; and/or the number of the groups of groups,

And under the condition that the characteristic information is the speed corresponding to the target in the detection range, if the ratio between the maximum speed of the target and the maximum detection speed of the radar is smaller than a sixth preset threshold value, determining the speed resolution to be adjusted according to the current speed resolution of the radar.

Optionally, the relevant attribute identified by the characteristic information is co-channel interference;

And if the characteristic information identifies that the proportion of the result with the same-frequency interference in the detection result is higher than a seventh preset threshold value, determining the working frequency to be adjusted according to the frequency of the same-frequency interference and the current working frequency of the radar.

In a second aspect, an embodiment of the present application provides a radar parameter adjusting apparatus, including:

The detection result acquisition module is used for acquiring detection results corresponding to the radar;

The feature information acquisition module is used for carrying out statistical analysis on the detection result to obtain feature information corresponding to the detection result, wherein the feature information is used for identifying related attributes in the process of detecting targets in a detection range by the radar;

And the parameter determining and issuing module is used for determining radar parameters to be adjusted based on the characteristic information and the current parameters of the radar, and issuing the radar parameters to be adjusted to the radar so that the radar can detect targets according to the radar parameters to be adjusted.

Optionally, the parameter determining and issuing module includes:

And the parameter determination submodule is used for determining radar parameters to be adjusted according to the magnitude relation between the characteristic information and the preset threshold corresponding to the identified related attribute and the current parameter of the radar corresponding to the characteristic information.

the parameter determination submodule includes:

The first determining unit is configured to determine, when the characteristic information is background power corresponding to an interference area, a detection power threshold to be adjusted corresponding to the interference area based on a detection power threshold corresponding to the difference value and the interference area, if a difference value between the detection power threshold corresponding to the interference area and the background power corresponding to the interference area is higher than a first preset threshold, where the interference area is an area where interference exists in a detection range of the radar determined by analyzing the detection result; and/or the number of the groups of groups,

If the characteristic information is the corresponding detected power of the interested target in different states, determining a detected power threshold to be adjusted based on the difference value and the detected power threshold if the difference value between the detected power threshold of the radar and the detected power corresponding to the interested target is higher than a second preset threshold, wherein the different states comprise different distances and/or different speeds;

the parameter determination submodule includes:

A second determining unit, configured to determine a radar parameter to be adjusted according to a current power parameter of the radar if the echo power of the target is lower than a third preset threshold, where the radar parameter to be adjusted includes a transmit power and/or a receive gain, and the radar parameter to be adjusted is greater than the current power parameter;

A third determining unit, configured to determine a radar parameter to be adjusted according to a current power parameter of the radar if the echo power of the target is higher than a fourth preset threshold, where the radar parameter to be adjusted includes a transmit power and/or a receive gain, and the radar parameter to be adjusted is smaller than the current power parameter;

the parameter determination submodule includes:

A fourth determining unit, configured to determine, if the feature information is a distance corresponding to a target in the detection range, a distance resolution to be adjusted according to a current distance resolution of the radar if there are a plurality of targets whose differences between the corresponding distances are smaller than a fifth preset threshold; and/or the number of the groups of groups,

If the characteristic information is the speed corresponding to the target in the detection range, determining the speed resolution to be adjusted according to the current speed resolution of the radar if the ratio between the maximum speed of the target and the maximum detection speed of the radar is smaller than a sixth preset threshold;

the parameter determination submodule includes:

and a fifth determining unit, configured to determine, according to the frequency of the co-channel interference and the current operating frequency of the radar, an operating frequency to be adjusted if the proportion of the result of the co-channel interference in the detection result identified by the feature information is higher than a seventh preset threshold.

In a third aspect, an embodiment of the present application provides an electronic device, including:

a memory for storing a computer program;

A processor configured to implement the method according to any one of the first aspect when executing a program stored in the memory.

In a fourth aspect, an embodiment of the present application provides a computer readable storage medium, where a computer program is stored, where the computer program when executed by a processor implements the method according to any one of the first aspects.

The embodiment of the application has the beneficial effects that:

In the scheme provided by the embodiment of the application, the electronic equipment can acquire the detection result corresponding to the radar, carry out statistical analysis on the detection result to obtain the characteristic information corresponding to the detection result, wherein the characteristic information is used for identifying the relevant attribute of the radar in the detection process of the target in the detection range, determining the radar parameter to be adjusted based on the characteristic information and the current parameter of the radar, and sending the radar parameter to be adjusted to the radar so that the radar can carry out target detection according to the radar parameter to be adjusted. The feature information is obtained by carrying out statistical analysis on the radar detection result, the input of an external sensor is not needed, and the radar parameter to be adjusted can be determined based on the feature information and the current radar parameter, so that the radar can carry out target detection according to the issued radar parameter to be adjusted, the autonomous adjustment of the radar parameter can be realized, and the adaptability of the radar to an actual detection scene can be improved. Of course, it is not necessary for any one product or method of practicing the application to achieve all of the advantages set forth above at the same time.

Drawings

In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the application, and other embodiments may be obtained according to these drawings to those skilled in the art.

FIG. 1 is a flowchart of a method for adjusting radar parameters according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a radar parameter adjustment framework according to an embodiment of the present application;

FIG. 3 is a flowchart of a method for adjusting radar parameters according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a radar parameter adjusting device according to an embodiment of the present application;

Fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. Based on the embodiments of the present application, all other embodiments obtained by the person skilled in the art based on the present application are included in the scope of protection of the present application.

In order to improve the adaptability of the radar to the actual detection scene, the embodiment of the application provides a radar parameter adjustment method, a device, an electronic device, a computer readable storage medium and a computer program product.

The method for adjusting radar parameters provided by the embodiment of the application can be applied to any electronic device needing to adjust radar parameters, for example, the method can be processing equipment and the like, is not particularly limited, and is hereinafter referred to as electronic equipment for clarity of description.

As shown in fig. 1, a radar parameter adjustment method is characterized in that the method includes:

s101, acquiring a detection result corresponding to a radar;

s102, carrying out statistical analysis on the detection result to obtain feature information corresponding to the detection result;

The characteristic information is used for identifying relevant attributes in the process of detecting targets in a detection range by the radar.

S103, determining radar parameters to be adjusted based on the characteristic information and the current parameters of the radar, and sending the radar parameters to be adjusted to the radar so that the radar can detect targets according to the radar parameters to be adjusted.

In the scheme provided by the embodiment of the application, the electronic equipment can acquire the detection result corresponding to the radar, carry out statistical analysis on the detection result to obtain the characteristic information corresponding to the detection result, wherein the characteristic information is used for identifying the relevant attribute in the process that the radar detects the target in the detection range, determining the radar parameter to be adjusted based on the characteristic information and the current parameter of the radar, and sending the radar parameter to be adjusted to the radar so that the radar detects the target according to the radar parameter to be adjusted. The feature information is obtained by carrying out statistical analysis on the radar detection result, the input of an external sensor is not needed, and the radar parameter to be adjusted can be determined based on the feature information and the current radar parameter, so that the radar can carry out target detection according to the issued radar parameter to be adjusted, the autonomous adjustment of the radar parameter can be realized, and the adaptability of the radar to an actual detection scene can be improved.

Radar, also known as "radio positioning", can find objects by radio and determine the spatial position of each object. The radar is mainly composed of an antenna, a transmitter, a receiver, a signal processor, a display and the like, wherein the transmitter of the radar irradiates electromagnetic wave energy to a certain direction in space through the antenna, an object in the direction reflects the electromagnetic wave to be hit, reflection is generated along all directions according to the reflection surface of a target, part of the electromagnetic wave energy is reflected to the radar direction and is acquired by the radar antenna, the reflected energy is sent to the receiver through the antenna to form an echo signal of the radar, and finally the echo signal is sent to the signal processor to be processed, and information about the target is extracted to obtain information about the distance, speed, azimuth, altitude and the like of the target to the radar.

Currently, when the radar is put into use, the radar parameter configuration is performed by adopting a one-time parameter configuration mode, for example, the radar parameter can be configured by a firmware upgrade mode. However, the radar parameters cannot be adjusted autonomously, and under the condition that the application scene or the environment is changed greatly, the configured radar parameters cannot ensure that the radar achieves the optimal detection effect, and then the radar parameters can be adjusted again only through human intervention. Therefore, in order to improve the adaptability of the radar to the actual detection scene, the application provides a radar parameter adjustment method.

In step S101, the electronic device may acquire a detection result corresponding to the radar. The detection result may be a result obtained by processing electromagnetic waves reflected by the detection target, may be a data feature of the detection target, and may be a frame of radar image, which is not specifically limited herein.

For example, radar emits electromagnetic waves into a certain direction in space to detect objects present in that direction. In this direction, the target a may reflect the electromagnetic wave according to the reflection surface thereof in each direction when the target a encounters the electromagnetic wave, wherein a part of the electromagnetic wave is reflected to the radar direction, the radar may receive the part of the electromagnetic wave, and process the part of the electromagnetic wave to obtain a radar image, so that the electronic device may obtain a detection result corresponding to the radar, that is, obtain the radar image.

The electronic device obtains a detection result corresponding to the radar, and in step S102, statistical analysis may be performed on the detection result to obtain feature information corresponding to the detection result.

The characteristic information is used for identifying relevant attributes in the process of detecting targets in the detection range by the radar. The correlation properties may include detected power, echo power, detection resolution, operating frequency, etc., and are not particularly limited herein.

In one embodiment, the electronic device performs statistical analysis on the detection result, and may use a numerical statistical analysis method to obtain feature information corresponding to the detection result. Illustratively, the numerical statistical analysis method may be correlation analysis, variance analysis, regression analysis, cluster analysis, principal component and factor analysis, or the like.

For example, the electronic device obtains a detection result corresponding to the radar, and performs numerical statistical analysis on the detection result to obtain feature information corresponding to the detection result, such as background power corresponding to the interference area, corresponding detection power of the target in different states, echo power of the target, and the like.

Next, in step S103, the electronic device may determine a radar parameter to be adjusted based on the feature information and the current parameter of the radar, and issue the radar parameter to be adjusted to the radar, so that the radar performs target detection according to the radar parameter to be adjusted.

Radar is a variety of types, and various types of radar have a number of radar parameters, which are selected and designed according to the performance and index requirements of the radar, and the radar parameters may include operating frequency, sweep bandwidth, transmit power, gain, range resolution, speed resolution, and the like.

In one embodiment, in order to determine whether the feature information corresponding to the detection result obtained by the electronic device is within the setting range of the current parameter of the corresponding radar, a certain condition may be preset, and if any feature information does not meet the setting condition, the current parameter of the corresponding radar is adjusted, so as to determine the radar parameter to be adjusted, and the radar parameter to be adjusted is issued to the radar, so that the radar performs target detection according to the radar parameter to be adjusted.

For example, as shown in fig. 2, when the radar is put into use, the disposable parameter configuration 201 is adopted to perform radar parameter configuration, and in the working process of the radar, a received signal can be sent to a radar signal processor to be processed, so that an electronic device can obtain a detection result corresponding to the processed radar detection. The electronic device may employ the detection statistical analysis module 202 to perform detection statistical analysis on the detection result, such as background analysis, interference estimation, target analysis, and the like, and may employ the parameter generation and adjustment module 203 to implement adjustment of the current parameter of the radar when it is determined that the feature information corresponding to the detection result obtained by the electronic device is not within the setting range of the current parameter corresponding to the radar, where the parameter generation and adjustment module 203 may implement autonomous generation of the parameter and issuing of the radar parameter, that is, the electronic device may issue the generated radar parameter to the radar for reconfiguration, so that the radar performs target detection according to the generated radar parameter.

For example, the characteristic information corresponding to the obtained result by the electronic device includes the echo power P of the target, and the radar can sometimes detect the target and sometimes cannot detect the target because the echo power P is low, so that the transmitting power of the radar can be increased based on the echo power P and the current transmitting power of the radar, and the adjusted transmitting power is sent to the radar, so that the radar can detect the target according to the adjusted transmitting power, and the radar can stably detect each target with low echo power in the detection range.

In the scheme of the embodiment, the characteristic information is obtained by carrying out statistical analysis on the radar detection result, so that the radar parameter to be adjusted can be determined based on the characteristic information and the current radar parameter, and the radar can carry out target detection according to the issued radar parameter to be adjusted, thereby realizing autonomous adjustment of the radar parameter and further improving the adaptability of the radar to an actual detection scene.

As an implementation manner of the embodiment of the present application, the step of determining the radar parameter to be adjusted based on the feature information and the current parameter of the radar may include:

Since the radar works by using electromagnetic waves, it is affected by application scene or environmental change, and therefore, in order to adapt to different detection scenes, the radar parameters need to be adjusted. For example, in the case where there is a temporary frequency or a frequency-doubled electromagnetic wave in the application environment, it is necessary to adjust the operating frequency of the radar. In the case where the echo power of the detected target is too low or too high, it is necessary to adjust the transmission power or gain of the radar.

In one embodiment, the radar parameter to be adjusted may be determined according to the magnitude relation between the characteristic information and the preset threshold corresponding to the identified related attribute and the current parameter of the radar corresponding to the characteristic information.

For example, the feature information and the identified related attributes thereof may be quantized, an adjustment deviation threshold may be set, a deviation between the actually counted feature quantization value and the feature quantization value adapted to the current parameter may be calculated, and when the deviation is greater than the set deviation threshold, the current parameter may be adjusted. Accordingly, all radar parameters to be adjusted are confirmed.

For example, when the target of interest B exists in the radar detection range, the detected power threshold of the target of interest B and the detected power corresponding to the target of interest B may be quantized, where the set adjustment deviation threshold is P _{Threshold value}, the detected power threshold of the target of interest B is P ₀, that is, the feature quantization value adapted by the current parameter is P ₀, the detected power corresponding to the target of interest B obtained by the electronic device is P _B, that is, the feature quantization value actually counted is P _B, where the difference between P ₀ and P _B is higher than P _{Threshold value}, then the electronic device may adjust the detected power threshold P ₀ based on the difference between P ₀ and P _B and the detected power threshold P ₀, and further determine the adjusted detected power threshold P _{0 Adjustment of}.

It can be seen that, in this embodiment, according to the magnitude relation between the characteristic information and the preset threshold corresponding to the identified related attribute, and the current parameter of the radar corresponding to the characteristic information, the radar parameter to be adjusted is determined. Therefore, the autonomous adjustment of radar parameters can be realized, and the adaptability of the radar to actual detection scenes can be improved.

As an implementation manner of the embodiment of the present application, the relevant attribute identified by the above feature information is detected power, where the detected power may be background power corresponding to an interference area, or may be detected power corresponding to an object of interest in different states, which is not limited herein specifically.

The step of determining the radar parameter to be adjusted according to the magnitude relation between the characteristic information and the preset threshold corresponding to the identified related attribute and the current parameter of the radar corresponding to the characteristic information may include:

Radar interference can be divided into suppression interference and deceptive interference, the former is mainly that a strong clutter background or a large amount of false target echoes are formed on a radar display, so that the detection capability of the radar is reduced; the latter mainly has angles, distances, speeds, false target fraud, etc. to destroy the identification and tracking of targets by radar operators or radar auto-tracking systems. Therefore, the radar needs to suppress the interference of the detection area to the maximum extent to acquire information about the target attribute.

In an embodiment, the electronic device may perform statistical analysis on the detection result, and if the obtained feature information is the background power corresponding to the interference area, and if the difference between the detected power threshold corresponding to the interference area and the background power corresponding to the interference area is higher than a first preset threshold, the detected power threshold may be adjusted based on the detected power threshold corresponding to the difference and the interference area, so as to determine the detected power threshold to be adjusted corresponding to the interference area.

The interference area is an area in which interference exists in the detection range of the radar, which is determined by analyzing the detection result. The interference may be near-frequency interference or frequency multiplication interference, and is not particularly limited herein. The first preset threshold is set according to the interference suppression intensity in the detection range.

Under the condition that the electronic equipment performs statistical analysis on the detection result and determines that the interference in the detection range disappears, the detection power threshold to be adjusted can be readjusted to the detection power threshold corresponding to the detection area without the interference, so that the detection rate of the target is improved.

For example, if an interference area exists in the radar detection range, the detected power threshold corresponding to the interference area is P _Background, the first preset threshold is P _{A first preset threshold value}, the background power corresponding to the interference area obtained by the electronic device is P _{Interference background}, at this time, the difference between P _{Interference background} and P _Background is higher than P _{A first preset threshold value}, then the electronic device may adjust the detected power threshold P _Background based on the difference between P _{Interference background} and P _Background and the detected power threshold P _Background corresponding to the interference area, and further determine the adjusted detected power threshold P _{Background adjustment}. When the interference in the detection range disappears, the detected power threshold P _{Background adjustment} can be readjusted to the detected power threshold P _Background corresponding to the case that the interference does not exist.

The radar can detect the interested target in the detection range for multiple times, the detection power conditions corresponding to the interested target in different distance and speed dimensions can be obtained, and when the detection power corresponding to the interested target is detected to change greatly, the detection power threshold of the interested target in different states is required to be adjusted correspondingly so as to detect the interested target effectively.

In one embodiment, if the characteristic information is the detected power of the target of interest corresponding to the different states, the electronic device may determine that the detected power threshold is to be adjusted based on the difference and the detected power threshold if the difference between the detected power threshold of the radar and the detected power of the target of interest is higher than a second preset threshold.

Wherein the different states comprise different distances and/or different speeds. The second preset threshold is set according to the speed and distance corresponding to the object of interest in the detection range.

For example, when the target B of interest exists in the radar detection range, the detected power threshold is P _{Status of}, the second preset threshold is P _{A second preset threshold value}, the detected power of the target B of interest obtained by the electronic device in the state that the speed is V and the distance is L is P _{State transition VL}, at this time, the difference between P _{Status of} and P _{State transition VL} is higher than P _{A second preset threshold value}, then the electronic device may adjust the detected power threshold P _{Status of} based on the difference between P _{Status of} and P _{State transition VL} and the detected power threshold P _{Status of}, further determine the adjusted detected power threshold P _{State adjustment}, and issue P _{State adjustment} to the radar, so that the radar effectively detects the target of interest.

It can be seen that, in this embodiment, if the difference between the detected power threshold corresponding to the interference area and the background power corresponding to the interference area is higher than the first preset threshold under the condition that the characteristic information is the background power corresponding to the interference area, the electronic device may determine the detected power threshold to be adjusted corresponding to the interference area based on the detected power threshold corresponding to the difference and the interference area, where the interference area is an area where interference exists in the detection range of the radar determined by analyzing the detection result; and/or under the condition that the characteristic information is the corresponding detected power of the interested target in different states, if the difference value between the detected power threshold of the radar and the detected power corresponding to the interested target is higher than a second preset threshold value, the electronic equipment can determine the detected power threshold to be adjusted based on the difference value and the detected power threshold, wherein the different states comprise different distances and/or different speeds. Therefore, when interference exists in the detection range, the detection power threshold corresponding to the interference background can be adjusted, the suppression of regional interference is realized, and the false detection rate is reduced; when the deviation of the interested target is detected, the detection power threshold corresponding to the interested target can be adjusted to detect the interested target, so that the autonomous adjustment of radar parameters is realized, and the adaptability of the radar to an actual detection scene can be improved.

As one implementation manner of the embodiment of the present application, the relevant attribute identified by the above feature information is echo power, where the echo power represents the received electromagnetic wave reflected from the target in the case that the radar emits the electromagnetic wave to irradiate the target.

Since electromagnetic waves emitted by the radar attenuate with the propagation distance in the propagation process, if the radar emission power is low, the echo power received by the radar is also low. Based on the condition that the object reflects electromagnetic waves, it may sometimes be possible to detect the object, and sometimes it may not be possible to detect the object.

In one embodiment, if the echo power of the target is below a third preset threshold, the electronic device may determine the radar parameter to be adjusted according to the current power parameter of the radar.

The radar parameter to be adjusted comprises transmitting power and/or receiving gain, and the radar parameter to be adjusted is larger than the current power parameter. Transmit power refers to energy in a given frequency band. Gain refers to the amplification factor. The third preset threshold is set according to the echo power of the weakly reflected target in the detectable detection range.

For example, the target C exists in the radar detection range, the third preset threshold is P _{Third preset threshold value}, and the target C may be detected when the radar is in a flickering condition during the detection of the target C, and the target C may not be detected. If the echo power of the target C obtained by the electronic device is P _{Echo wave c}, P _{Echo wave c} is lower than P _{Third preset threshold value}, then the electronic device may adjust the transmit power, or may adjust the receive gain, specifically, may increase the transmit power, or may increase the receive gain, and further issue the adjusted transmit power or receive gain to the radar, so that the radar may detect the target with lower echo power.

If the radar transmit power is too high, then the echo power received by the radar may overflow, resulting in an inability to properly detect a strongly reflected target.

In one embodiment, if the echo power of the target is higher than the fourth preset threshold, the electronic device may determine a radar parameter to be adjusted according to a current power parameter of the radar, where the radar parameter to be adjusted includes a transmit power and/or a receive gain, and the radar parameter to be adjusted is smaller than the current power parameter. The fourth preset threshold is set based on the echo power of the strongly reflected target in the detectable detection range.

For example, the target D exists in the radar detection range, the fourth preset threshold is P _{Fourth preset threshold value}, and the echo power of the target D overflows during the detection of the target D, that is, the capability of the target D to reflect electromagnetic waves is strong. If the echo power of the target D obtained by the electronic device is P _{Echo wave D},P_{Echo wave D} higher than P _{Fourth preset threshold value}, the electronic device may adjust the transmitting power and may also adjust the receiving gain, specifically, may reduce the transmitting power and may also reduce the receiving gain, and further issue the adjusted transmitting power or receiving gain to the radar, so that the radar may effectively detect the target with higher echo power.

It can be seen that, in this embodiment, if the echo power of the target is lower than the third preset threshold, determining a radar parameter to be adjusted according to the current power parameter of the radar, where the radar parameter to be adjusted includes a transmitting power and/or a receiving gain, and the radar parameter to be adjusted is greater than the current power parameter, and if the echo power of the target is higher than the fourth preset threshold, determining the radar parameter to be adjusted according to the current power parameter of the radar, where the radar parameter to be adjusted includes a transmitting power and/or a receiving gain, and the radar parameter to be adjusted is less than the current power parameter. Therefore, the electronic equipment can realize effective detection of the weak reflection target and the strong reflection target by adjusting the transmitting power and/or the receiving gain, thereby realizing autonomous adjustment of radar parameters and improving the adaptability of the radar to actual detection scenes.

As an implementation manner of the embodiment of the present application, the relevant attribute identified by the above feature information is a detection resolution, where the detection resolution includes a distance resolution, and the like, which is not specifically limited herein.

In the radar detection range, there may be a plurality of targets in a close range state in the detection direction, that is, the plurality of targets may be distributed in close positions, and then, in order to detect the plurality of targets in the vicinity, the range resolution may be adjusted.

In one embodiment, in the case that the feature information is a distance corresponding to a target in the detection range, if there are a plurality of targets whose differences between the corresponding distances are smaller than a fifth preset threshold, the electronic device may determine the distance resolution to be adjusted according to the current distance resolution of the radar. Illustratively, the sweep bandwidth can be increased, the range resolution improved, etc. Wherein the fifth preset threshold is set according to the distance between the close objects.

For example, a plurality of targets, namely a target a, a target B and a target C, exist in the radar detection range, the fifth preset threshold is L _{fifth preset threshold value}, where the distance between the target a, the target B and the target C is very close, the difference between the distances between the target a and the target B, the difference between the distances between the target a and the target C and the difference between the distances between the target B and the target C are all smaller than L _{fifth preset threshold value}, and then the electronic device can increase the sweep bandwidth and improve the distance resolution, so that the radar can stably detect the plurality of targets with similar distances.

In the radar detection range, there may be a lower speed target, for which the speed resolution may be adjusted in order to detect the lower speed target.

In one embodiment, in the case that the characteristic information is a speed corresponding to a target in the detection range, if a ratio between a maximum speed of the target and a maximum detection speed of the radar is smaller than a sixth preset threshold, the electronic device may determine the speed resolution to be adjusted according to the current speed resolution of the radar. Illustratively, the frame rate may be reduced, the frame length may be increased, etc. Wherein the sixth preset threshold is set according to the speed of the low speed target.

For example, a plurality of targets are present in the radar detection range, namely a target D, a target F and a target E, and the sixth preset threshold is V _{sixth preset threshold}, where the speeds of the target D, the target F and the target E are all lower. The ratio between the maximum speed V _F of the target obtained by the electronic device and the radar maximum detection speed V _{Detection of} is smaller than the sixth preset threshold V _{sixth preset threshold}, so that the electronic device can reduce the frame rate, increase the frame length, further improve the speed resolution, and improve the detection performance of the low-speed or tangential target.

It can be seen that, in this embodiment, if there are a plurality of targets whose differences between the corresponding distances are smaller than the fifth preset threshold under the condition that the feature information is the distance corresponding to the target in the detection range, determining the distance resolution to be adjusted according to the current distance resolution of the radar; and/or under the condition that the characteristic information is the speed corresponding to the target in the detection range, if the ratio between the maximum speed of the target and the maximum detection speed of the radar is smaller than a sixth preset threshold value, determining the speed resolution to be adjusted according to the current speed resolution of the radar. Therefore, the electronic equipment can realize effective detection of a plurality of targets by adjusting the distance resolution and/or the speed resolution, so that autonomous adjustment of radar parameters is realized, and the adaptability of the radar to an actual detection scene can be improved.

As an implementation manner of the embodiment of the present application, the correlation attribute identified by the above feature information is co-channel interference, where co-channel interference refers to interference caused by a receiver that receives a co-channel useful signal and that the carrier frequency of the useful signal is the same as that of the useful signal.

Since co-channel interference can seriously affect the quality of signals and the detection of targets by the radar, the working frequency of the radar can be adjusted in order to avoid the co-channel interference.

In one embodiment, if the proportion of the result of the co-channel interference existing in the detection result identified by the feature information is higher than a seventh preset threshold, the electronic device may determine the working frequency to be adjusted according to the frequency of the co-channel interference and the current working frequency of the radar. The seventh preset threshold is set according to the occurrence ratio of the co-channel interference result.

For example, the electronic device obtains 100 frames of radar images detected by the radar, the seventh preset threshold is 30%, wherein the radar images with the same-frequency interference in the 100 frames of radar images are 50 frames, and then the proportion of the radar images with the same-frequency interference is 50% and is higher than the seventh preset threshold by 30%, and the electronic device can adjust the working frequency of the radar according to the range of the same-frequency interference and send the adjusted working frequency to the radar, so that the radar avoids an interference frequency interval when detecting a target.

It can be seen that, in this embodiment, if the proportion of the result of the co-channel interference existing in the detection result identified by the feature information is higher than the seventh preset threshold, the electronic device may determine the working frequency to be adjusted according to the frequency of the co-channel interference and the current working frequency of the radar. Therefore, the same-frequency interference can be avoided after the working frequency is adjusted, so that the autonomous adjustment of radar parameters is realized, and the adaptability of the radar to actual detection scenes can be improved.

Fig. 3 is a flowchart of a radar parameter adjustment method according to an embodiment of the present application. The following describes an example of a radar parameter adjustment method according to an embodiment of the present application with reference to fig. 3. As shown in fig. 3, a method for adjusting radar parameters provided by an embodiment of the present application may include the following steps:

s301, radar signal processing;

in the working process of the radar, the received signals can be sent to a radar signal processor to process radar signals, and then the electronic equipment can acquire detection results corresponding to radar detection.

S302, statistical analysis of process variables;

The electronics can perform detection statistics on the detection results (i.e., process variables), such as background analysis, velocity analysis, target analysis, etc.

S303, judging that the statistical value exceeds a threshold;

The electronic device may perform threshold determination on the feature information (i.e., the statistic value) corresponding to the detection result (i.e., the process variable) in the detection statistical analysis, for example, determine whether a difference between the background power corresponding to the interference area and the detected power threshold corresponding to the interference area is higher than a first preset threshold.

S304, triggering parameter adjustment, if yes, executing step S305, and if no, executing step S301;

When the feature information (i.e., the statistic value) corresponding to the detection result does not meet the threshold condition, that is, the feature information corresponding to the detection result obtained by the electronic device is not in the setting range of the current parameter of the radar corresponding to the feature information, the electronic device can trigger the parameter adjustment, and execute step S305, if not, the radar can perform target detection according to the radar parameter to be detected.

S305, parameter self-adaptive generation;

The electronic device may generate radar parameters to be adjusted based on the characteristic information and current parameters of the radar.

S306, self-adaptive parameters are issued.

After the electronic device generates the radar parameters to be adjusted, the adjusted radar parameters can be issued to the radar, so that the radar performs target detection according to the radar parameters to be adjusted.

Corresponding to the radar parameter adjusting method, the embodiment of the application also provides a radar parameter adjusting device. The following describes a radar parameter adjusting device provided in an embodiment of the present application.

As shown in fig. 4, a radar parameter adjusting apparatus includes:

a detection result obtaining module 410, configured to obtain a detection result corresponding to the radar;

The feature information obtaining module 420 is configured to perform statistical analysis on the detection result to obtain feature information corresponding to the detection result, where the feature information is used to identify related attributes in a process of detecting a target in a detection range by the radar;

The parameter determining and issuing module 430 is configured to determine a radar parameter to be adjusted based on the feature information and a current parameter of the radar, and issue the radar parameter to be adjusted to the radar, so that the radar performs target detection according to the radar parameter to be adjusted.

As an implementation manner of the embodiment of the present application, the parameter determining and issuing module 430 may include:

As an implementation manner of the embodiment of the present application, the relevant attribute identified by the feature information is detected power;

the parameter determining submodule may include:

And determining a detection power threshold to be adjusted based on the difference value and the detection power threshold if the difference value between the detection power threshold of the radar and the detection power corresponding to the target of interest is higher than a second preset threshold under the condition that the characteristic information is the corresponding detection power of the target of interest in different states, wherein the different states comprise different distances and/or different speeds.

As an implementation manner of the embodiment of the present application, the relevant attribute identified by the characteristic information is echo power;

the parameter determining submodule may include:

and the third determining unit is used for determining radar parameters to be adjusted according to the current power parameters of the radar if the echo power of the target is higher than a fourth preset threshold, wherein the radar parameters to be adjusted comprise transmitting power and/or receiving gain, and the radar parameters to be adjusted are smaller than the current power parameters.

As an implementation manner of the embodiment of the present application, the relevant attribute identified by the feature information is a detection resolution;

the parameter determining submodule may include:

And determining the speed resolution to be adjusted according to the current speed resolution of the radar if the ratio between the maximum speed of the target and the maximum detection speed of the radar is smaller than a sixth preset threshold under the condition that the characteristic information is the speed corresponding to the target in the detection range.

As an implementation manner of the embodiment of the present application, the relevant attribute identified by the characteristic information is co-channel interference;

the parameter determining submodule may include:

The embodiment of the application also provides an electronic device, as shown in fig. 5, including:

A memory 501 for storing a computer program;

the processor 502 is configured to implement a radar parameter adjustment method according to any one of the above embodiments when executing the program stored in the memory 501.

And the electronic device may further comprise a communication bus and/or a communication interface, through which the processor 502, the communication interface, and the memory 501 communicate with each other.

The communication bus mentioned above for the electronic device may be a peripheral component interconnect standard (PERIPHERAL COMPONENT INTERCONNECT, PCI) bus or an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus, etc. The communication bus may be classified as an address bus, a data bus, a control bus, or the like. For ease of illustration, the figures are shown with only one bold line, but not with only one bus or one type of bus.

The communication interface is used for communication between the electronic device and other devices.

The Memory may include random access Memory (Random Access Memory, RAM) or may include Non-Volatile Memory (NVM), such as at least one disk Memory. Optionally, the memory may also be at least one memory device located remotely from the aforementioned processor.

The processor may be a general-purpose processor, including a central processing unit (Central Processing Unit, CPU), a network processor (Network Processor, NP), etc.; but may also be a digital signal Processor (DIGITAL SIGNAL Processor, DSP), application SPECIFIC INTEGRATED Circuit (ASIC), field-Programmable gate array (Field-Programmable GATE ARRAY, FPGA) or other Programmable logic device, discrete gate or transistor logic device, discrete hardware components.

In yet another embodiment of the present application, there is also provided a computer readable storage medium having stored therein a computer program which, when executed by a processor, implements the steps of any of the above-mentioned radar parameter adjustment methods.

In yet another embodiment of the present application, there is also provided a computer program product containing instructions that, when run on a computer, cause the computer to perform any of the radar parameter adjustment methods of the above embodiments.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, for example, by wired (e.g., coaxial cable, optical fiber, digital Subscriber Line (DSL)), or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, tape), an optical medium (e.g., DVD), or a Solid state disk Solid STATE DISK (SSD).

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In this specification, each embodiment is described in a related manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for the apparatus, electronic device, computer readable storage medium, and computer program product embodiments, the description is relatively simple, as relevant to the method embodiments being referred to in the section of the description of the method embodiments.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. A method for radar parameter adjustment, the method comprising:

acquiring a detection result corresponding to the radar;

2. The method according to claim 1, wherein the step of determining radar parameters to be adjusted based on the characteristic information and current parameters of the radar comprises:

3. The method of claim 2, wherein the correlation attribute identified by the characteristic information is detected power;

4. The method of claim 2, wherein the attribute identified by the characteristic information is echo power;

5. The method of claim 2, wherein the associated attribute identified by the characteristic information is a detection resolution;

6. The method of claim 2, wherein the correlation attribute identified by the characteristic information is co-channel interference;

7. A radar parameter adjusting device, the device comprising:

8. The apparatus of claim 7, wherein the parameter determination and distribution module comprises:

The parameter determination submodule is used for determining radar parameters to be adjusted according to the magnitude relation between the characteristic information and a preset threshold corresponding to the identified related attribute and the current parameter of the radar corresponding to the characteristic information;

the relevant attribute identified by the characteristic information is the detected power;

the parameter determination submodule includes:

The relevant attribute identified by the characteristic information is echo power;

the parameter determination submodule includes:

the relevant attribute identified by the characteristic information is detection resolution;

the parameter determination submodule includes:

The relevant attribute identified by the characteristic information is same-frequency interference;

the parameter determination submodule includes:

9. An electronic device, comprising:

a memory for storing a computer program;

A processor for implementing the method of any of claims 1-6 when executing a program stored on a memory.

10. A computer readable storage medium, characterized in that the computer readable storage medium has stored therein a computer program which, when executed by a processor, implements the method of any of claims 1-6.